FAN7527D Ver la hoja de datos (PDF) - Fairchild Semiconductor

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Fabricante

FAN7527D

Power Factor Correction Controller

Fairchild Semiconductor 

FAN7527

Power Factor Correction Controller

www.fairchildsemi.com

Features

• Internal Startup Timer

• Internal R/C filter eliminates the Need for an External

R/C filter

• Very Precise Adjustable Output Over Voltage Protection

• Zero Current Detector

• One Quadrant Multiplier

• Trimmed 1.5% Internal Bandgap Reference

• Under Voltage Lock Out with 3V of Hysteresis

• Totem Pole Output with High State Clamp

• Low Startup and Operating Current

• 8-Pin DIP or 8-Pin SOP

Applications

• Electronic Ballast

• SMPS

Description

The FAN7527 provides simple and high performance active

power factor correction. FAN7527 is optimized for

electronic ballast and low power, high density power

supplies which require minimum board area reduced

component count and low power dissipation. Internal R/C

filter eliminates the need for an external R/C filter. Internally

clamping the error amplifier and multiplier outputs,

improves turn on overshoot characteristics and current

limiting. Special circuitry has also been added to prevent no

load runaway conditions. Independent of supply voltage, the

output drive clamping circuit limits overshoot of the power

MOSFET gate drive. This greatly enhances the system

reliability.

8-DIP

1

8-SOP

1

©2001 Fairchild Semiconductor Corporation

Rev 1.0.3

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